/Engine/Plugins/Runtime/StateTree/Source/StateTreeModule/Public/StateTreeEvents.h
StateTree event with payload.
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)([BlueprintType](Programming/UnrealArchitecture/Reference/Structs/Specifiers/BlueprintType)) struct FStateTreeEvent
FName
Origin
Optional info to describe who sent the event.
FInstancedStruc...
Payload
Optional payload for the event.
FGameplayTag
Tag
Tag describing the event